Medindia

X

Stanford Scientists Develop Artificial Skin Capable of Sensing the Pressure of Touch

by Vishnuprasad on  November 21, 2015 at 4:27 PM Medical Gadgets   - G J E 4
A team of scientists at Stanford University has developed a tactile sensing system which could produce the human sensation of touch.
Stanford Scientists Develop Artificial Skin Capable of Sensing the Pressure of Touch
Stanford Scientists Develop Artificial Skin Capable of Sensing the Pressure of Touch
Advertisement

According to the research published in the Science, the sensing system or artificial skin could one day permit people with prostheses to feel the sense of touch with their artificial limbs.

‘Artificial Skin Capable of Sensing the Pressure of Touch has been developed at Stanford University using a two ply printed plastic construct. The upper layer serving as a sensing platform and the lower layer being a circuit for converting touch into digital signals.’
Advertisement
The research was led by Prof. Zhenan Bao of the University.

Human skin depends on cutaneous receptors that generate digital signals for tactile sensing in which the intensity of stimulation is changed to a series of voltage pulses. The team, in the journal, presented a power-efficient skin-inspired mechanoreceptor with a flexible organic transistor circuit. They say that the circuit transduces pressure into digital frequency signals directly.

The output frequency stands between 0 and 200 hertz, with a sublinear response to increasing force stimuli that mimics slow-adapting skin mechanoreceptors. (Mechanoreceptors are generally a sensory receptor that responds to mechanical pressure or distortion).

The output of the sensors was then utilized to stimulate optogenetically engineered mouse somatosensory neurons of mouse cortex (in vitro) attaining stimulated pulses in accordance with pressure levels. Researchers wrote that the study represents a step toward the design and use of large-area organic electronic skins with neural-integrated touch feedback for replacement limbs.



Source: Medindia
Advertisement

Post your Comments

Comments should be on the topic and should not be abusive. The editorial team reserves the right to review and moderate the comments posted on the site.
User Avatar
* Your comment can be maximum of 2500 characters
Notify me when reply is posted I agree to the terms and conditions

You May Also Like

Advertisement
View All